ABAP Select data from SAP table IMEP_LAST_DOC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IMEP_LAST_DOC table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to IMEP_LAST_DOC. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the IMEP_LAST_DOC table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_IMEP_LAST_DOC TYPE STANDARD TABLE OF IMEP_LAST_DOC,
      WA_IMEP_LAST_DOC TYPE IMEP_LAST_DOC,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <IMEP_LAST_DOC> TYPE IMEP_LAST_DOC.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_IMEP_LAST_DOC.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IMEP_LAST_DOC
  INTO TABLE IT_IMEP_LAST_DOC.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IMEP_LAST_DOC
*  INTO TABLE @DATA(IT_IMEP_LAST_DOC2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_IMEP_LAST_DOC INDEX 1 INTO DATA(WA_IMEP_LAST_DOC2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IMEP_LAST_DOC ASSIGNING <IMEP_LAST_DOC>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IMEP_LAST_DOC>-MANDT = 1.
<IMEP_LAST_DOC>-MELNR = 1.
<IMEP_LAST_DOC>-POSNR = 1.
<IMEP_LAST_DOC>-SORTF = 1.
<IMEP_LAST_DOC>-OBLIG = 1.

ENDLOOP.

LOOP AT IT_IMEP_LAST_DOC INTO WA_IMEP_LAST_DOC.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IMEP_LAST_DOC-POINT, sy-vline,
  WA_IMEP_LAST_DOC-MPOBJ, sy-vline,
  WA_IMEP_LAST_DOC-PSORT, sy-vline,
  WA_IMEP_LAST_DOC-PSORTR, sy-vline,
  WA_IMEP_LAST_DOC-PTTXT, sy-vline,
  WA_IMEP_LAST_DOC-MPTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IMEP_LAST_DOC you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_IMEP_LAST_DOC TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_IMEP_LAST_DOC INTO WA_IMEP_LAST_DOC.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field MELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMEP_LAST_DOC-MELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMEP_LAST_DOC-MELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field POINT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMEP_LAST_DOC-POINT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMEP_LAST_DOC-POINT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field LOCAS
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_IMEP_LAST_DOC-LOCAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMEP_LAST_DOC-LOCAS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REFMP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMEP_LAST_DOC-REFMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMEP_LAST_DOC-REFMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ATINN, internal->external for field ATINN
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
  EXPORTING
    input =                      WA_IMEP_LAST_DOC-ATINN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMEP_LAST_DOC-ATINN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MRNGU
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IMEP_LAST_DOC-MRNGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMEP_LAST_DOC-MRNGU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field TRANS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMEP_LAST_DOC-TRANS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMEP_LAST_DOC-TRANS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMEP_LAST_DOC-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMEP_LAST_DOC-LOGSYS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field MLANG_P
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_IMEP_LAST_DOC-MLANG_P
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMEP_LAST_DOC-MLANG_P.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MSEHI
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IMEP_LAST_DOC-MSEHI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMEP_LAST_DOC-MSEHI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field MDOCM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMEP_LAST_DOC-MDOCM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMEP_LAST_DOC-MDOCM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field MLANG
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_IMEP_LAST_DOC-MLANG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMEP_LAST_DOC-MLANG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRUEFLOS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMEP_LAST_DOC-PRUEFLOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMEP_LAST_DOC-PRUEFLOS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ROOTD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMEP_LAST_DOC-ROOTD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMEP_LAST_DOC-ROOTD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field RECDU
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IMEP_LAST_DOC-RECDU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMEP_LAST_DOC-RECDU.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CVERS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMEP_LAST_DOC-CVERS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMEP_LAST_DOC-CVERS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOGSYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IMEP_LAST_DOC-LOGSYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IMEP_LAST_DOC-LOGSYSTEM.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_IMEP_LAST_DOC_STR, 
MANDT TYPE STRING,
MELNR TYPE STRING,
POSNR TYPE STRING,
SORTF TYPE STRING,
OBLIG TYPE STRING,
POINT TYPE STRING,
MPOBJ TYPE STRING,
PSORT TYPE STRING,
PSORTR TYPE STRING,
PTTXT TYPE STRING,
MPTYP TYPE STRING,
IRFMP TYPE STRING,
BEGRU TYPE STRING,
INACT TYPE STRING,
LOCAS TYPE STRING,
REFMP TYPE STRING,
ATINN TYPE STRING,
ATINNR TYPE STRING,
EXPON TYPE STRING,
DECIM TYPE STRING,
DESIR TYPE STRING,
DESIRI TYPE STRING,
DESIRR TYPE STRING,
DSTXT TYPE STRING,
DSTXTR TYPE STRING,
MRMIN TYPE STRING,
MRMINI TYPE STRING,
MRMAX TYPE STRING,
MRMAXI TYPE STRING,
MRNGU TYPE STRING,
INDCT TYPE STRING,
INDRV TYPE STRING,
INDTR TYPE STRING,
TRANS TYPE STRING,
CJUMP TYPE STRING,
CJUMPI TYPE STRING,
PYEAR TYPE STRING,
PYEARI TYPE STRING,
CODGRR TYPE STRING,
CDSUF TYPE STRING,
MODTR TYPE STRING,
INDTRR TYPE STRING,
LOGSYS TYPE STRING,
LOGSYS_CHG TYPE STRING,
MLANG_P TYPE STRING,
KZLTX_P TYPE STRING,
ERDAT_P TYPE STRING,
ERNAM_P TYPE STRING,
AEDAT_P TYPE STRING,
AENAM_P TYPE STRING,
LVORM_P TYPE STRING,
CODCT_P TYPE STRING,
CODGR_P TYPE STRING,
ATNAM TYPE STRING,
ATFOR TYPE STRING,
ATVOR TYPE STRING,
MSEHI TYPE STRING,
ATDIM TYPE STRING,
ANZDZ TYPE STRING,
AUSWAHLMGE TYPE STRING,
MDOCM TYPE STRING,
IDATE TYPE STRING,
ITIME TYPE STRING,
INVTS TYPE STRING,
CNTRG TYPE STRING,
MDTXT TYPE STRING,
MLANG TYPE STRING,
KZLTX TYPE STRING,
READR TYPE STRING,
ERDAT TYPE STRING,
ERUHR TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
LVORM TYPE STRING,
GENER TYPE STRING,
PRUEFLOS TYPE STRING,
VORGLFNR TYPE STRING,
MERKNR TYPE STRING,
DETAILERG TYPE STRING,
ROOTD TYPE STRING,
TOLTY TYPE STRING,
TOLID TYPE STRING,
WOOBJ TYPE STRING,
DOCAF TYPE STRING,
READG TYPE STRING,
READGI TYPE STRING,
RECDV TYPE STRING,
RECDVI TYPE STRING,
RECDU TYPE STRING,
CNTRR TYPE STRING,
CNTRRI TYPE STRING,
CDIFF TYPE STRING,
CDIFFI TYPE STRING,
IDIFF TYPE STRING,
EXCHG TYPE STRING,
TOTEX TYPE STRING,
CODCT TYPE STRING,
CODGR TYPE STRING,
VLCOD TYPE STRING,
CVERS TYPE STRING,
PREST TYPE STRING,
CANCL TYPE STRING,
WOOB1 TYPE STRING,
PROBENR TYPE STRING,
MBEWERTG TYPE STRING,
INTVL TYPE STRING,
IDAT1 TYPE STRING,
ITIM1 TYPE STRING,
TMSTP_BW TYPE STRING,
LOGSYSTEM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IMEP_LAST_DOC_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_IMEP_LAST_DOC_STR-MANDT sy-vline 
WA_IMEP_LAST_DOC_STR-MELNR sy-vline 
WA_IMEP_LAST_DOC_STR-POSNR sy-vline 
WA_IMEP_LAST_DOC_STR-SORTF sy-vline 
WA_IMEP_LAST_DOC_STR-OBLIG sy-vline 
WA_IMEP_LAST_DOC_STR-POINT sy-vline 
WA_IMEP_LAST_DOC_STR-MPOBJ sy-vline 
WA_IMEP_LAST_DOC_STR-PSORT sy-vline 
WA_IMEP_LAST_DOC_STR-PSORTR sy-vline 
WA_IMEP_LAST_DOC_STR-PTTXT sy-vline 
WA_IMEP_LAST_DOC_STR-MPTYP sy-vline 
WA_IMEP_LAST_DOC_STR-IRFMP sy-vline 
WA_IMEP_LAST_DOC_STR-BEGRU sy-vline 
WA_IMEP_LAST_DOC_STR-INACT sy-vline 
WA_IMEP_LAST_DOC_STR-LOCAS sy-vline 
WA_IMEP_LAST_DOC_STR-REFMP sy-vline 
WA_IMEP_LAST_DOC_STR-ATINN sy-vline 
WA_IMEP_LAST_DOC_STR-ATINNR sy-vline 
WA_IMEP_LAST_DOC_STR-EXPON sy-vline 
WA_IMEP_LAST_DOC_STR-DECIM sy-vline 
WA_IMEP_LAST_DOC_STR-DESIR sy-vline 
WA_IMEP_LAST_DOC_STR-DESIRI sy-vline 
WA_IMEP_LAST_DOC_STR-DESIRR sy-vline 
WA_IMEP_LAST_DOC_STR-DSTXT sy-vline 
WA_IMEP_LAST_DOC_STR-DSTXTR sy-vline 
WA_IMEP_LAST_DOC_STR-MRMIN sy-vline 
WA_IMEP_LAST_DOC_STR-MRMINI sy-vline 
WA_IMEP_LAST_DOC_STR-MRMAX sy-vline 
WA_IMEP_LAST_DOC_STR-MRMAXI sy-vline 
WA_IMEP_LAST_DOC_STR-MRNGU sy-vline 
WA_IMEP_LAST_DOC_STR-INDCT sy-vline 
WA_IMEP_LAST_DOC_STR-INDRV sy-vline 
WA_IMEP_LAST_DOC_STR-INDTR sy-vline 
WA_IMEP_LAST_DOC_STR-TRANS sy-vline 
WA_IMEP_LAST_DOC_STR-CJUMP sy-vline 
WA_IMEP_LAST_DOC_STR-CJUMPI sy-vline 
WA_IMEP_LAST_DOC_STR-PYEAR sy-vline 
WA_IMEP_LAST_DOC_STR-PYEARI sy-vline 
WA_IMEP_LAST_DOC_STR-CODGRR sy-vline 
WA_IMEP_LAST_DOC_STR-CDSUF sy-vline 
WA_IMEP_LAST_DOC_STR-MODTR sy-vline 
WA_IMEP_LAST_DOC_STR-INDTRR sy-vline 
WA_IMEP_LAST_DOC_STR-LOGSYS sy-vline 
WA_IMEP_LAST_DOC_STR-LOGSYS_CHG sy-vline 
WA_IMEP_LAST_DOC_STR-MLANG_P sy-vline 
WA_IMEP_LAST_DOC_STR-KZLTX_P sy-vline 
WA_IMEP_LAST_DOC_STR-ERDAT_P sy-vline 
WA_IMEP_LAST_DOC_STR-ERNAM_P sy-vline 
WA_IMEP_LAST_DOC_STR-AEDAT_P sy-vline 
WA_IMEP_LAST_DOC_STR-AENAM_P sy-vline 
WA_IMEP_LAST_DOC_STR-LVORM_P sy-vline 
WA_IMEP_LAST_DOC_STR-CODCT_P sy-vline 
WA_IMEP_LAST_DOC_STR-CODGR_P sy-vline 
WA_IMEP_LAST_DOC_STR-ATNAM sy-vline 
WA_IMEP_LAST_DOC_STR-ATFOR sy-vline 
WA_IMEP_LAST_DOC_STR-ATVOR sy-vline 
WA_IMEP_LAST_DOC_STR-MSEHI sy-vline 
WA_IMEP_LAST_DOC_STR-ATDIM sy-vline 
WA_IMEP_LAST_DOC_STR-ANZDZ sy-vline 
WA_IMEP_LAST_DOC_STR-AUSWAHLMGE sy-vline 
WA_IMEP_LAST_DOC_STR-MDOCM sy-vline 
WA_IMEP_LAST_DOC_STR-IDATE sy-vline 
WA_IMEP_LAST_DOC_STR-ITIME sy-vline 
WA_IMEP_LAST_DOC_STR-INVTS sy-vline 
WA_IMEP_LAST_DOC_STR-CNTRG sy-vline 
WA_IMEP_LAST_DOC_STR-MDTXT sy-vline 
WA_IMEP_LAST_DOC_STR-MLANG sy-vline 
WA_IMEP_LAST_DOC_STR-KZLTX sy-vline 
WA_IMEP_LAST_DOC_STR-READR sy-vline 
WA_IMEP_LAST_DOC_STR-ERDAT sy-vline 
WA_IMEP_LAST_DOC_STR-ERUHR sy-vline 
WA_IMEP_LAST_DOC_STR-ERNAM sy-vline 
WA_IMEP_LAST_DOC_STR-AEDAT sy-vline 
WA_IMEP_LAST_DOC_STR-AENAM sy-vline 
WA_IMEP_LAST_DOC_STR-LVORM sy-vline 
WA_IMEP_LAST_DOC_STR-GENER sy-vline 
WA_IMEP_LAST_DOC_STR-PRUEFLOS sy-vline 
WA_IMEP_LAST_DOC_STR-VORGLFNR sy-vline 
WA_IMEP_LAST_DOC_STR-MERKNR sy-vline 
WA_IMEP_LAST_DOC_STR-DETAILERG sy-vline 
WA_IMEP_LAST_DOC_STR-ROOTD sy-vline 
WA_IMEP_LAST_DOC_STR-TOLTY sy-vline 
WA_IMEP_LAST_DOC_STR-TOLID sy-vline 
WA_IMEP_LAST_DOC_STR-WOOBJ sy-vline 
WA_IMEP_LAST_DOC_STR-DOCAF sy-vline 
WA_IMEP_LAST_DOC_STR-READG sy-vline 
WA_IMEP_LAST_DOC_STR-READGI sy-vline 
WA_IMEP_LAST_DOC_STR-RECDV sy-vline 
WA_IMEP_LAST_DOC_STR-RECDVI sy-vline 
WA_IMEP_LAST_DOC_STR-RECDU sy-vline 
WA_IMEP_LAST_DOC_STR-CNTRR sy-vline 
WA_IMEP_LAST_DOC_STR-CNTRRI sy-vline 
WA_IMEP_LAST_DOC_STR-CDIFF sy-vline 
WA_IMEP_LAST_DOC_STR-CDIFFI sy-vline 
WA_IMEP_LAST_DOC_STR-IDIFF sy-vline 
WA_IMEP_LAST_DOC_STR-EXCHG sy-vline 
WA_IMEP_LAST_DOC_STR-TOTEX sy-vline 
WA_IMEP_LAST_DOC_STR-CODCT sy-vline 
WA_IMEP_LAST_DOC_STR-CODGR sy-vline 
WA_IMEP_LAST_DOC_STR-VLCOD sy-vline 
WA_IMEP_LAST_DOC_STR-CVERS sy-vline 
WA_IMEP_LAST_DOC_STR-PREST sy-vline 
WA_IMEP_LAST_DOC_STR-CANCL sy-vline 
WA_IMEP_LAST_DOC_STR-WOOB1 sy-vline 
WA_IMEP_LAST_DOC_STR-PROBENR sy-vline 
WA_IMEP_LAST_DOC_STR-MBEWERTG sy-vline 
WA_IMEP_LAST_DOC_STR-INTVL sy-vline 
WA_IMEP_LAST_DOC_STR-IDAT1 sy-vline 
WA_IMEP_LAST_DOC_STR-ITIM1 sy-vline 
WA_IMEP_LAST_DOC_STR-TMSTP_BW sy-vline 
WA_IMEP_LAST_DOC_STR-LOGSYSTEM sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.